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Start Over Author "Sultan, M." Journal journal of neurosurgery
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1. Recurrence after cure in cranial dural arteriovenous fistulas: a collaborative effort by the Consortium for Dural Arteriovenous Fistula Outcomes Research (CONDOR)

Author

Abecassis, Isaac Josh, primary, Meyer, R. Michael, additional, Levitt, Michael R., additional, Sheehan, Jason P., additional, Chen, Ching-Jen, additional, Gross, Bradley A., additional, Smith, Jessica, additional, Fox, W. Christopher, additional, Giordan, Enrico, additional, Lanzino, Giuseppe, additional, Starke, Robert M., additional, Sur, Samir, additional, Potgieser, Adriaan R. E., additional, van Dijk, J. Marc C., additional, Durnford, Andrew, additional, Bulters, Diederik, additional, Satomi, Junichiro, additional, Tada, Yoshiteru, additional, Kwasnicki, Amanda, additional, Amin-Hanjani, Sepideh, additional, Alaraj, Ali, additional, Samaniego, Edgar A., additional, Hayakawa, Minako, additional, Derdeyn, Colin P., additional, Winkler, Ethan, additional, Abla, Adib, additional, Lai, Pui Man Rosalind, additional, Du, Rose, additional, Guniganti, Ridhima, additional, Kansagra, Akash P., additional, Zipfel, Gregory J., additional, Kim, Louis J., additional, _, _, additional, Piccirillo, Jay F., additional, Raman, Hari, additional, Lipsey, Kim, additional, Brinjikji, Waleed, additional, Vine, Roanna, additional, Cloft, Harry J., additional, Kallmes, David F., additional, Pollock, Bruce E., additional, Link, Michael J., additional, Sheehan, Jason, additional, Patibandla, Mohana Rao, additional, Ding, Dale, additional, Buell, Thomas, additional, Paisan, Gabriella, additional, Abecassis, Isaac Josh, additional, Kelly, Cory, additional, Duffill, Jonathan, additional, Ditchfield, Adam, additional, Millar, John, additional, Macdonald, Jason, additional, Polifka, Adam J., additional, Laurent, Dimitri, additional, Hoh, Brian, additional, Lockerman, Ashley, additional, Lunsford, L. Dade, additional, Jankowitz, Brian T., additional, Gutierrez, Santiago Ortega, additional, Hasan, David, additional, Roa, Jorge A., additional, Rossen, James, additional, Guerrero, Waldo, additional, McGruder, Allen, additional, Charbel, Fady T., additional, Aletich, Victor A., additional, Rose-Finnell, Linda, additional, Peterson, Eric C., additional, Yavagal, Dileep R., additional, Chen, Stephanie H., additional, Kanematsu, Yasuhisa, additional, Yamamoto, Nobuaki, additional, Kinouchi, Tomoya, additional, Korai, Masaaki, additional, Yamaguchi, Izumi, additional, Yamamoto, Yuki, additional, Phelps, Ryan R. L., additional, Lawton, Michael, additional, Rutkowski, Martin, additional, Aziz-Sultan, M. Ali, additional, Patel, Nirav, additional, and Frerichs, Kai U., additional

Published
2022
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2. Dural arteriovenous fistulas without cortical venous drainage: presentation, treatment, and outcomes

Author

Samaniego, Edgar A., primary, Roa, Jorge A., additional, Hayakawa, Minako, additional, Chen, Ching-Jen, additional, Sheehan, Jason P., additional, Kim, Louis J., additional, Abecassis, Isaac Josh, additional, Levitt, Michael R., additional, Guniganti, Ridhima, additional, Kansagra, Akash P., additional, Lanzino, Giuseppe, additional, Giordan, Enrico, additional, Brinjikji, Waleed, additional, Bulters, Diederik, additional, Durnford, Andrew, additional, Fox, W. Christopher, additional, Polifka, Adam J., additional, Gross, Bradley A., additional, Amin-Hanjani, Sepideh, additional, Alaraj, Ali, additional, Kwasnicki, Amanda, additional, Starke, Robert M., additional, Sur, Samir, additional, van Dijk, J. Marc C., additional, Potgieser, Adriaan R. E., additional, Satomi, Junichiro, additional, Tada, Yoshiteru, additional, Abla, Adib, additional, Winkler, Ethan, additional, Du, Rose, additional, Lai, Pui Man Rosalind, additional, Zipfel, Gregory J., additional, Derdeyn, Colin P., additional, _, _, additional, Piccirillo, Jay F., additional, Raman, Hari, additional, Lipsey, Kim, additional, Vine, Roanna, additional, Cloft, Harry J., additional, Kallmes, David F., additional, Pollock, Bruce E., additional, Link, Michael J., additional, Sheehan, Jason, additional, Patibandla, Mohana Rao, additional, Ding, Dale, additional, Buell, Thomas, additional, Paisan, Gabriella, additional, Meyer, R. Michael, additional, Kelly, Cory, additional, Duffill, Jonathan, additional, Ditchfield, Adam, additional, Millar, John, additional, Macdonald, Jason, additional, Laurent, Dimitri, additional, Hoh, Brian, additional, Smith, Jessica, additional, Lockerman, Ashley, additional, Lunsford, L. Dade, additional, Jankowitz, Brian T., additional, Samaniego, Edgar A., additional, Gutierrez, Santiago Ortega, additional, Hasan, David, additional, Rossen, James, additional, Guerrero, Waldo, additional, McGruder, Allen, additional, Charbel, Fady T., additional, Aletich, Victor A., additional, Rose-Finnell, Linda, additional, Peterson, Eric C., additional, Yavagal, Dileep R., additional, Chen, Stephanie H., additional, Kanematsu, Yasuhisa, additional, Yamamoto, Nobuaki, additional, Kinouchi, Tomoya, additional, Korai, Masaaki, additional, Yamaguchi, Izumi, additional, Yamamoto, Yuki, additional, Phelps, Ryan R. L., additional, Lawton, Michael, additional, Rutkowski, Martin, additional, Aziz-Sultan, M. Ali, additional, Patel, Nirav, additional, and Frerichs, Kai U., additional

Published
2022
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3. Intervention for unruptured high-grade intracranial dural arteriovenous fistulas: a multicenter study

Author

Chen, Ching-Jen, primary, Buell, Thomas J., additional, Ding, Dale, additional, Guniganti, Ridhima, additional, Kansagra, Akash P., additional, Lanzino, Giuseppe, additional, Giordan, Enrico, additional, Kim, Louis J., additional, Levitt, Michael R., additional, Abecassis, Isaac Josh, additional, Bulters, Diederik, additional, Durnford, Andrew, additional, Fox, W. Christopher, additional, Polifka, Adam J., additional, Gross, Bradley A., additional, Hayakawa, Minako, additional, Derdeyn, Colin P., additional, Samaniego, Edgar A., additional, Amin-Hanjani, Sepideh, additional, Alaraj, Ali, additional, Kwasnicki, Amanda, additional, van Dijk, J. Marc C., additional, Potgieser, Adriaan R. E., additional, Starke, Robert M., additional, Sur, Samir, additional, Satomi, Junichiro, additional, Tada, Yoshiteru, additional, Abla, Adib A., additional, Winkler, Ethan A., additional, Du, Rose, additional, Lai, Pui Man Rosalind, additional, Zipfel, Gregory J., additional, Sheehan, Jason P., additional, _, _, additional, Piccirillo, Jay F., additional, Raman, Hari, additional, Lipsey, Kim, additional, Brinjikji, Waleed, additional, Vine, Roanna, additional, Cloft, Harry J., additional, Kallmes, David F., additional, Pollock, Bruce E., additional, Link, Michael J., additional, Sheehan, Jason, additional, Chen, Ching-Jen, additional, Patibandla, Mohana Rao, additional, Buell, Thomas, additional, Paisan, Gabriella, additional, Meyer, R. Michael, additional, Kelly, Cory, additional, Duffill, Jonathan, additional, Ditchfield, Adam, additional, Millar, John, additional, Macdonald, Jason, additional, Laurent, Dimitri, additional, Hoh, Brian, additional, Smith, Jessica, additional, Lockerman, Ashley, additional, Lunsford, L. Dade, additional, Jankowitz, Brian T., additional, Gutierrez, Santiago Ortega, additional, Hasan, David, additional, Roa, Jorge A., additional, Rossen, James, additional, Guerrero, Waldo, additional, McGruder, Allen, additional, Charbel, Fady T., additional, Aletich, Victor A., additional, Rose-Finnell, Linda, additional, Peterson, Eric C., additional, Yavagal, Dileep R., additional, Chen, Stephanie H., additional, Kanematsu, Yasuhisa, additional, Yamamoto, Nobuaki, additional, Kinouchi, Tomoya, additional, Korai, Masaaki, additional, Yamaguchi, Izumi, additional, Yamamoto, Yuki, additional, Abla, Adib, additional, Winkler, Ethan, additional, Phelps, Ryan R. L., additional, Lawton, Michael, additional, Rutkowski, Martin, additional, Aziz-Sultan, M. Ali, additional, Patel, Nirav, additional, and Frerichs, Kai U., additional

Published
2022
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4. Consortium for Dural Arteriovenous Fistula Outcomes Research (CONDOR): rationale, design, and initial characterization of patient cohort

Author

Guniganti, Ridhima, primary, Giordan, Enrico, additional, Chen, Ching-Jen, additional, Abecassis, Isaac Josh, additional, Levitt, Michael R., additional, Durnford, Andrew, additional, Smith, Jessica, additional, Samaniego, Edgar A., additional, Derdeyn, Colin P., additional, Kwasnicki, Amanda, additional, Alaraj, Ali, additional, Potgieser, Adriaan R. E., additional, Sur, Samir, additional, Chen, Stephanie H., additional, Tada, Yoshiteru, additional, Winkler, Ethan, additional, Phelps, Ryan R. L., additional, Lai, Pui Man Rosalind, additional, Du, Rose, additional, Abla, Adib, additional, Satomi, Junichiro, additional, Starke, Robert M., additional, van Dijk, J. Marc C., additional, Amin-Hanjani, Sepideh, additional, Hayakawa, Minako, additional, Gross, Bradley A., additional, Fox, W. Christopher, additional, Bulters, Diederik, additional, Kim, Louis J., additional, Sheehan, Jason, additional, Lanzino, Giuseppe, additional, Piccirillo, Jay F., additional, Kansagra, Akash P., additional, Zipfel, Gregory J., additional, _, _, additional, Guniganti, Ridhima, additional, Raman, Hari, additional, Lipsey, Kim, additional, Brinjikji, Waleed, additional, Vine, Roanna, additional, Cloft, Harry J., additional, Kallmes, David F., additional, Pollock, Bruce E., additional, Link, Michael J., additional, Patibandla, Mohana Rao, additional, Ding, Dale, additional, Buell, Thomas, additional, Paisan, Gabriella, additional, Meyer, R. Michael, additional, Kelly, Cory, additional, Duffill, Jonathan, additional, Ditchfield, Adam, additional, Millar, John, additional, Macdonald, Jason, additional, Polifka, Adam J., additional, Laurent, Dimitri, additional, Hoh, Brian, additional, Lockerman, Ashley, additional, Lunsford, L. Dade, additional, Jankowitz, Brian T., additional, Gutierrez, Santiago Ortega, additional, Hasan, David, additional, Roa, Jorge A., additional, Rossen, James, additional, Guerrero, Waldo, additional, McGruder, Allen, additional, Charbel, Fady T., additional, Aletich, Victor A., additional, Rose-Finnell, Linda, additional, Peterson, Eric C., additional, Yavagal, Dileep R., additional, Kanematsu, Yasuhisa, additional, Yamamoto, Nobuaki, additional, Kinouchi, Tomoya, additional, Korai, Masaaki, additional, Yamaguchi, Izumi, additional, Yamamoto, Yuki, additional, Lawton, Michael, additional, Rutkowski, Martin, additional, Aziz-Sultan, M. Ali, additional, Patel, Nirav, additional, and Frerichs, Kai U., additional

Published
2022
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5. Assessing the rate, natural history, and treatment trends of intracranial aneurysms in patients with intracranial dural arteriovenous fistulas: a Consortium for Dural Arteriovenous Fistula Outcomes Research (CONDOR) investigation

Author

Abecassis, Isaac Josh, primary, Meyer, R. Michael, additional, Levitt, Michael R., additional, Sheehan, Jason P., additional, Chen, Ching-Jen, additional, Gross, Bradley A., additional, Lockerman, Ashley, additional, Fox, W. Christopher, additional, Brinjikji, Waleed, additional, Lanzino, Giuseppe, additional, Starke, Robert M., additional, Chen, Stephanie H., additional, Potgieser, Adriaan R. E., additional, van Dijk, J. Marc C., additional, Durnford, Andrew, additional, Bulters, Diederik, additional, Satomi, Junichiro, additional, Tada, Yoshiteru, additional, Kwasnicki, Amanda, additional, Amin-Hanjani, Sepideh, additional, Alaraj, Ali, additional, Samaniego, Edgar A., additional, Hayakawa, Minako, additional, Derdeyn, Colin P., additional, Winkler, Ethan, additional, Abla, Adib, additional, Lai, Pui Man Rosalind, additional, Du, Rose, additional, Guniganti, Ridhima, additional, Kansagra, Akash P., additional, Zipfel, Gregory J., additional, Kim, Louis J., additional, _, _, additional, Piccirillo, Jay F., additional, Raman, Hari, additional, Lipsey, Kim, additional, Giordan, Enrico, additional, Vine, Roanna, additional, Cloft, Harry J., additional, Kallmes, David F., additional, Pollock, Bruce E., additional, Link, Michael J., additional, Sheehan, Jason, additional, Patibandla, Mohana Rao, additional, Ding, Dale, additional, Buell, Thomas, additional, Paisan, Gabriella, additional, Abecassis, Isaac Josh, additional, Kelly, Cory, additional, Duffill, Jonathan, additional, Ditchfield, Adam, additional, Millar, John, additional, Macdonald, Jason, additional, Polifka, Adam J., additional, Laurent, Dimitri, additional, Hoh, Brian, additional, Smith, Jessica, additional, Lunsford, L. Dade, additional, Jankowitz, Brian T., additional, Gutierrez, Santiago Ortega, additional, Hasan, David, additional, Roa, Jorge A., additional, Rossen, James, additional, Guerrero, Waldo, additional, McGruder, Allen, additional, Charbel, Fady T., additional, Aletich, Victor A., additional, Rose-Finnell, Linda, additional, Peterson, Eric C., additional, Yavagal, Dileep R., additional, Sur, Samir, additional, Kanematsu, Yasuhisa, additional, Yamamoto, Nobuaki, additional, Kinouchi, Tomoya, additional, Korai, Masaaki, additional, Yamaguchi, Izumi, additional, Yamamoto, Yuki, additional, Phelps, Ryan R. L., additional, Lawton, Michael, additional, Rutkowski, Martin, additional, Aziz-Sultan, M. Ali, additional, Patel, Nirav, additional, and Frerichs, Kai U., additional

Published
2022
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15. Periprocedural intracranial hemorrhage after embolization of cerebral arteriovenous malformations: a meta-analysis.

Author

Subat YW, Dasenbrock HH, Gross BA, Patel NJ, Frerichs KU, Du R, and Aziz-Sultan MA

Abstract

Objective: The primary goal of the treatment of cerebral arteriovenous malformations (AVMs) is angiographic occlusion to eliminate future hemorrhage risk. Although multimodal treatment is increasingly used for AVMs, periprocedural hemorrhage after transarterial embolization is a potential endovascular complication that is only partially understood and merits quantification., Methods: Searching the period between 1990 and 2019, the authors of this meta-analysis queried the PubMed and Embase databases for studies reporting periprocedural hemorrhage (within 30 days) after liquid embolization (using cyanoacrylate or ethylene vinyl alcohol copolymer) of AVMs. Random effects meta-analysis was used to evaluate the pooled rate of flow-related hemorrhage (those attributed to alterations in AVM dynamics), technical hemorrhage (those related to procedural complications), and total hemorrhage. Meta-regression was used to analyze the study-level predictors of hemorrhage, including patient age, Spetzler-Martin grade, hemorrhagic presentation, embolysate used, intent of treatment (adjuvant vs curative), associated aneurysms, endovascular angiographic obliteration, year of study publication, and years the procedures were performed., Results: A total of 98 studies with 8009 patients were included in this analysis, and the mean number of embolization sessions per patient was 1.9. The pooled flow-related and total periprocedural hemorrhage rates were 2.0% (95% CI 1.5%-2.4%) and 2.6% (95% CI 2.1%-3.0%) per procedure and 3.4% (95% CI 2.6%-4.2%) and 4.8% (95% CI 4.0%-5.6%) per patient, respectively. The mortality and morbidity rates associated with hemorrhage were 14.6% and 45.1%, respectively. Subgroup analyses revealed a pooled total hemorrhage rate per procedure of 1.8% (95% CI 1.0%-2.5%) for adjuvant (surgery or radiosurgery) and 4.6% (95% CI 2.8%-6.4%) for curative intent. The treatment of aneurysms (p = 0.04) and larger patient populations (p < 0.001) were significant predictors of a lower hemorrhage rate, whereas curative intent (p = 0.04), angiographic obliteration achieved endovascularly (p = 0.003), and a greater number of embolization sessions (p = 0.03) were significant predictors of a higher hemorrhage rate. There were no significant differences in periprocedural hemorrhage rates according to the years evaluated or the embolysate utilized., Conclusions: In this study-level meta-analysis, periprocedural hemorrhage was seen after 2.6% of transarterial embolization procedures for cerebral AVMs. The adjuvant use of endovascular embolization, including in the treatment of associated aneurysms and in the presurgical or preradiosurgical setting, was a study-level predictor of significantly lower hemorrhage rates, whereas more aggressive embolization involving curative intent and endovascular angiographic obliteration was a predictor of a significantly higher total hemorrhage rate.

Published
2019
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16. Adverse events after clipping of unruptured intracranial aneurysms: the NSQIP unruptured aneurysm scale.

Author

Dasenbrock HH, Rudy RF, Smith TR, Gormley WB, Patel NJ, Frerichs KU, Aziz-Sultan MA, and Du R

Abstract

Objective: The complex decision analysis of unruptured intracranial aneurysms entails weighing the benefits of aneurysm repair against operative risk. The goal of the present analysis was to build and validate a predictive scale that identifies patients with the greatest odds of a postsurgical adverse event., Methods: Data on patients who underwent surgical clipping of an unruptured aneurysm were extracted from the prospective National Surgical Quality Improvement Program registry (NSQIP; 2007-2014); NSQIP does not systematically collect data on patients undergoing intracranial endovascular intervention. Multivariable logistic regression evaluated predictors of any 30-day adverse event; variables screened included patient demographics, comorbidities, functional status, preoperative laboratory values, aneurysm location/complexity, and operative time. A predictive scale was constructed based on statistically significant independent predictors, which was validated using both NSQIP (2015-2016) and the Nationwide Inpatient Sample (NIS; 2002-2011)., Results: The NSQIP unruptured aneurysm scale was proposed: 1 point was assigned for a bleeding disorder; 2 points for age 51-60 years, cardiac disease, diabetes mellitus, morbid obesity, anemia (hematocrit < 36%), operative time 240-330 minutes; 3 points for leukocytosis (white blood cell count > 12,000/μL) and operative time > 330 minutes; and 4 points for age > 60 years. An increased score was predictive of postoperative stroke or coma (NSQIP: p = 0.002, C-statistic = 0.70; NIS: p < 0.001, C-statistic = 0.61), a medical complication (NSQIP: p = 0.01, C-statistic = 0.71; NIS: p < 0.001, C-statistic = 0.64), and a nonroutine discharge (NSQIP: p < 0.001, C-statistic = 0.75; NIS: p < 0.001, C-statistic = 0.66) in both validation populations. Greater score was also predictive of increased odds of any adverse event, a major complication, and an extended hospitalization in both validation populations (p ≤ 0.03)., Conclusions: The NSQIP unruptured aneurysm scale may augment the risk stratification of patients undergoing microsurgical clipping of unruptured cerebral aneurysms.

Published
2019
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